Watch case



FIG. 1 is a perspective view of a watch case, showing my new design;

FIG. 2 is a top plan view;

FIG. 3 is bottom plan view;

FIG. 4 is a side elevational view when viewed from the right side;

FIG. 5 is a side elevational view when viewed from the left side;

FIG. 6 is a top plan view; and

FIG. 7 is a bottom plan view, showing my new design.

The ornamental design for a watch case, as shown and described.